Circuit closer for motor vehicles



Aug. 2,2, 1933. R. F MURKAM, 1,923,578

CIRCUIT CLOSER FOR MOTOR VEHICLES Filed March 3, 1931 4 33 (2:13) 3012 4Z 43 g f l f f 213 1 2-3 27 l I I /z INVENTOR. /2 37 E/KUJ/ Norm/Mw Patented ug. 22, 1933 CIRCUIT CLOSER FOR MOTOR VEHICLES V Riku-ji `Fred Murakami, santa Barbara, Calif. Applfmamm March s, 1931. serial No.519,725

. 3 Claims. (Cl. 200-59) {Thisinvention relates to improvements in automobile direction indicating signals and'more particularly to Va novel and eflicient switch for controlling Vthe operation of such signals, saidl l. switch forming the foot plate of one of the operating pedals, such as the brake pedal of `the automobile, and being selectively operable to actuate the signals responsive to a rocking movementof the foot of the driver when the foot is in i0 the `usual position on the pedal. The improvements herein described pertain to switches of the type described in my copending application for automobile pedal signal device, Serial No.` 339,192, led February 11, 1929.

'15. An object of this invention is vto provide a switch forming the foot` plate of an operating pedal, whichl switch has selectively depressible endY portions on which are carried contact blades to be brought into engagement with stationary ,l terminals in the foot plate, which terminals are connected into various signal circuitsithe contact blades being carried on extensions of the depressible member so formed asV to hold the said de- L ptessible members aligned with the foot plate top when released, said members being resiliently urged intoreleased positions. I

v Other objects and advantages are to provide an automobile direction indicating signal that r will be superior in point oi simplicity, inexpensiven ness of construction, positiveness of operation, and'facility and convenience in `use and general `this specication and the annexed drawing, l the invention is illustrated in the form n considered to berthe best, vbut it is to be under- @Od'that the invention is not limited -to Asuch forr'mbecause it may be embodied in other forms; and it is also to be understood that in and by the claims following the description, it is desiredV n to cover the invention in whatsoever form it may be embodied.

. The invention is clearly illustrated in the accompanying drawing wherein, 1 is a plan view of the switch with the top l covering removed. Y

Fig. 2 is a cross sectional View of the switch,the f section being taken on the line 2- 2.

Fig. 3'is a longitudinal sectional view of'the switch, the section being taken'on the line 3-3 ill-1:r1ug-1. 1

' Flg.,4 is a cross sectional view ofthe switch, Vthe section being taken on the line 4--4 of Fig. 1. l "ll'lgx 511s aL wiring diagram of the circuit connectingl the switch to a source roi? electricity and n to a ser of signaiiignts;

In carrying out my invention I provide an elongated, substantially rectangular frame Vor casing block 6, thru the central part of which extends an aperture 9, from the top to the bottorn of the block 6. The block 6 forms the foot plate of an operating rod or p edal 8 and it is preferably integral therewith.

On the opposite longitudinal side walls of the aperture 9 are secured insulating plates 7, preferably dovetailed into the walls as shown. In 65 one end of the upper corner of one plate 7 is secured a terminal contact 11 and in the other or farther end of the upper corner of the other plate 7 is secured another terminal contact 12.

A binding post 13 extending thru the side and 7 insulated from the block 6 is directly connected to the contact 11. Another binding post 14 adjacent the post 13 is connected to the other contact l2 by means of an insulated wire 16,

which latter extends at the bottom of the aper- 75 ture 9. Electrical conduits or cords 17 are connected to the binding posts 13 and 14, and are securedV to the clutch pedal rod 8 by means of a clamp 18.

' On the opposite ends of the pedal block 6 are 8 pivoted treadle plates 19. Each treadle plate 19 covers the respective end of the block 6.` A iiange 21 extends from the ends of each plate 19, downwardly and over the adjacent end 22 of the block 6. Opposite pivot ilanges 23 extend downwardly from each plate 19 overthe sides of the block'6, and have a hole 221 adjacent the inner ends thereof thru which a pivot screw 26.l is inserted. The screws 26 are threadedly secured Vin the opposite sides Vof the block 6 at each end thereof outside of and adjacent the upper corners ofthe aperture 9. The treadle plates 19 are thus pivoted on the endsof the block 6. YThetop of each end of the block 6 is cut off to form a face 27 i'nclinedtoward the endface 22 to allow the outward tilting of the treadle plates` 19 thereover. The inside corner of e'ach block' end is cut oi at 28 to taper toward theV aperture 9 to provide space for the free tilting movement of an extension 29 on the inner edge of each treadle `plate 19.

Each extension 29 is formed intermediate the Vends of the inner edge of the treadle'plate 19,

and it is rst bent on an incline as at 31, then it extends at' right angles to the top of the respective plate 19 and over the adjacentend of ofpm top 've treadle plate 19 to metheaadtreadleplateintohnwntalpb Hun. in alignment with the top of the aperture M 1? are held in horizontal I ofthe met that the exten- 29 thema! has: against the respective end the , i the A'ni' A www nimmt@ rest on the pedal. whereas yieldable the and depressible when the toot ism Having thus d w A inventign. claim auddsire toset'ebylttersmh mme farming the :not me or pedal o: a vehicle. mme banni;

in j nfs y mm an Ymme nntedtbvariousgdepressible over cash by movabledownm the edsot thepeal frame .nizw

l u ,www

' adjacent wall of the recess to prevent the moveclose various circuits of the vehicle thru the said contacts, each of said members comprising a.

-housing having the sides and end thereof extended over the sides and the adjacent end of the pedal frame, and being pivoted adjacent the inner top corners of its sides.

RIKUJI FRED MURAKAMI. 

